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RESTATEMENT OF UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Details) - Schedule of Error Corrections and Prior Period Adjustments - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019
--- | --- | --- | --- | --- | --- | ---
Current Assets |  |  |  |  |  |
Cash and cash equivalents | $ 9,479 |  | $ 1,936 |  |  |
Restricted cash | 1,000 |  | 1,025 |  |  |
Investments in securities at fair value | 6,322 |  | 6,322 |  |  |
Accounts and other receivables | 2,645 |  | 974 |  |  |
Prepaid expenses | 430 |  | 285 |  |  |
Total Current Assets | 19,876 |  | 10,542 |  |  |
Net Property and Equipment | 1,388 |  | 1,506 |  |  |
Other Assets |  |  |  |  |  |
Investments in equity securities at fair value, non-current | 16,939 |  | 5,142 |  |  |
Investments in available-for-sale debt securities at fair value | 23,927 |  | 0 |  |  |
Other investments | 2,940 |  | 1,283 |  |  |
Investments in held-to-maturity debt securities | 1,000 |  | 0 |  |  |
Equity method investments | 596 |  | 158 |  |  |
Right of use assets | 56 |  | 93 |  |  |
Other assets, non-current | 100 |  | 92 |  |  |
Total Other Assets | 45,558 |  | 6,768 |  |  |
Total Assets | 66,822 |  | 18,816 |  |  |
Current Liabilities |  |  |  |  |  |
Accounts payable | 72 |  | 29 |  |  |
Accrued compensation and related costs | 747 |  | 360 |  |  |
Dividends payable | 226 |  | 113 |  |  |
Lease liability, short-term | 52 |  | 50 |  |  |
Other accrued expenses | 1,226 |  | 1,015 |  |  |
Taxes payable | 3,472 |  | 0 |  |  |
Note payable, current | 0 |  | 442 |  |  |
Total Current Liabilities | 5,795 |  | 2,009 |  |  |
Long-Term Liabilities |  |  |  |  |  |
Deferred tax liability | 5,897 |  | 0 |  |  |
Lease liability, long-term | 4 |  | 43 |  |  |
Total Long-Term Liabilities | 5,901 |  | 43 |  |  |
Total Liabilities | 11,696 |  | 2,052 |  |  |
Shareholders’ Equity |  |  |  |  |  |
Additional paid-in-capital | 15,628 |  | 15,623 |  |  |
Treasury stock, class A shares at cost; 883,326 shares and 855,432 shares at March 31, 2021, and June 30, 2020, respectively | (2,051) |  | (1,879) |  |  |
Accumulated other comprehensive income (loss), net of tax | 11,840 | $ 8 | (4) | $ (9) | $ (205) | $ (206)
Retained earnings | 29,310 |  | 2,625 |  |  |
Total Shareholders’ Equity | 55,126 | $ 35,112 | 16,764 | $ 15,311 | $ 17,287 | $ 22,179
Total Liabilities and Shareholders’ Equity | 66,822 |  | 18,816 |  |  |
Common Class A [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 347 |  | 347 |  |  |
Common Class B [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 0 |  | 0 |  |  |
Common Class C [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 52 |  | $ 52 |  |  |
Previously Reported [Member] |  |  |  |  |  |
Current Assets |  |  |  |  |  |
Cash and cash equivalents | 9,479 |  |  |  |  |
Restricted cash | 1,000 |  |  |  |  |
Investments in securities at fair value | 6,322 |  |  |  |  |
Accounts and other receivables | 2,645 |  |  |  |  |
Prepaid expenses | 430 |  |  |  |  |
Total Current Assets | 19,876 |  |  |  |  |
Net Property and Equipment | 1,388 |  |  |  |  |
Other Assets |  |  |  |  |  |
Investments in equity securities at fair value, non-current | 18,635 |  |  |  |  |
Investments in available-for-sale debt securities at fair value | 16,470 |  |  |  |  |
Other investments | 2,940 |  |  |  |  |
Investments in held-to-maturity debt securities | 1,000 |  |  |  |  |
Equity method investments | 596 |  |  |  |  |
Right of use assets | 56 |  |  |  |  |
Other assets, non-current | 100 |  |  |  |  |
Total Other Assets | 39,797 |  |  |  |  |
Total Assets | 61,061 |  |  |  |  |
Current Liabilities |  |  |  |  |  |
Accounts payable | 72 |  |  |  |  |
Accrued compensation and related costs | 692 |  |  |  |  |
Dividends payable | 226 |  |  |  |  |
Lease liability, short-term | 52 |  |  |  |  |
Other accrued expenses | 1,221 |  |  |  |  |
Taxes payable | 3,515 |  |  |  |  |
Note payable, current | 0 |  |  |  |  |
Total Current Liabilities | 5,778 |  |  |  |  |
Long-Term Liabilities |  |  |  |  |  |
Deferred tax liability | 4,681 |  |  |  |  |
Lease liability, long-term | 4 |  |  |  |  |
Total Long-Term Liabilities | 4,685 |  |  |  |  |
Total Liabilities | 10,463 |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Additional paid-in-capital | 15,628 |  |  |  |  |
Treasury stock, class A shares at cost; 883,326 shares and 855,432 shares at March 31, 2021, and June 30, 2020, respectively | (2,051) |  |  |  |  |
Accumulated other comprehensive income (loss), net of tax | 1,695 |  |  |  |  |
Retained earnings | 34,927 |  |  |  |  |
Total Shareholders’ Equity | 50,598 |  |  |  |  |
Total Liabilities and Shareholders’ Equity | 61,061 |  |  |  |  |
Previously Reported [Member] | Common Class A [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 347 |  |  |  |  |
Previously Reported [Member] | Common Class B [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 0 |  |  |  |  |
Previously Reported [Member] | Common Class C [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 52 |  |  |  |  |
Revision of Prior Period, Adjustment [Member] |  |  |  |  |  |
Current Assets |  |  |  |  |  |
Cash and cash equivalents | 0 |  |  |  |  |
Restricted cash | 0 |  |  |  |  |
Investments in securities at fair value | 0 |  |  |  |  |
Accounts and other receivables | 0 |  |  |  |  |
Prepaid expenses | 0 |  |  |  |  |
Total Current Assets | 0 |  |  |  |  |
Net Property and Equipment | 0 |  |  |  |  |
Other Assets |  |  |  |  |  |
Investments in equity securities at fair value, non-current | (1,696) |  |  |  |  |
Investments in available-for-sale debt securities at fair value | 7,457 |  |  |  |  |
Other investments | 0 |  |  |  |  |
Investments in held-to-maturity debt securities | 0 |  |  |  |  |
Equity method investments |  |  |  |  |  |
Right of use assets | 0 |  |  |  |  |
Other assets, non-current | 0 |  |  |  |  |
Total Other Assets | 5,761 |  |  |  |  |
Total Assets | 5,761 |  |  |  |  |
Current Liabilities |  |  |  |  |  |
Accounts payable | 0 |  |  |  |  |
Accrued compensation and related costs | 55 |  |  |  |  |
Dividends payable | 0 |  |  |  |  |
Lease liability, short-term | 0 |  |  |  |  |
Other accrued expenses | 5 |  |  |  |  |
Taxes payable | (43) |  |  |  |  |
Note payable, current |  |  |  |  |  |
Total Current Liabilities | 17 |  |  |  |  |
Long-Term Liabilities |  |  |  |  |  |
Deferred tax liability | 1,216 |  |  |  |  |
Lease liability, long-term | 0 |  |  |  |  |
Total Long-Term Liabilities | 1,216 |  |  |  |  |
Total Liabilities | 1,233 |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Additional paid-in-capital | 0 |  |  |  |  |
Treasury stock, class A shares at cost; 883,326 shares and 855,432 shares at March 31, 2021, and June 30, 2020, respectively | 0 |  |  |  |  |
Accumulated other comprehensive income (loss), net of tax | 10,145 |  |  |  |  |
Retained earnings | (5,617) |  |  |  |  |
Total Shareholders’ Equity | 4,528 |  |  |  |  |
Total Liabilities and Shareholders’ Equity | 5,761 |  |  |  |  |
Revision of Prior Period, Adjustment [Member] | Common Class A [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 0 |  |  |  |  |
Revision of Prior Period, Adjustment [Member] | Common Class B [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | 0 |  |  |  |  |
Revision of Prior Period, Adjustment [Member] | Common Class C [Member] |  |  |  |  |  |
Shareholders’ Equity |  |  |  |  |  |
Common stock (class A) - $0.025 par value; nonvoting; authorized, 28,000,000 shares; issued, 13,866,913 shares at March 31, 2021, and June 30, 2020 | $ 0 |  |  |  |  |

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